BARBADOS-ANTIGUA REPORTS 4) 
Family Polynoide 
HERMENIA Grube 
Hermenia verruculosa Grube 
Hermenta verruculosa Grube, (1856), pp. 45, 46. 
Treadwell, (1911), pp. 9 to 14, figs. 23 to 26. 
One specimen collected at Station 101. 
HauosypNna Kinberg 
Halosydna leucohyba Schmarda 
Halosydna leucohyba Schmarda, (1861), p. 153, text figs. a, b, ¢; pl. 
XXXVI, fig. 308. 
Webster, (1884), pp. 309, 310, pl. VII, figs. 19, 20. 
One specimen ‘‘on old coral heads.”’ 
Halosydna fusca-maculata new species. 
A single specimen is in the collection. In the great difference in size 
between the first pair and later pairs of elytra this approaches Hermenia 
of Grube, but the number of elytra is greater and the differences in size 
less marked than in the single species thus far described in that genus. 
The animal is 28 mm. in length with a width of 5 mm. 
The prostomium is about as wide as long, with the anterior margin 
prolonged to form the bases for the lateral tentacles. (Figure 5) The 
anterior eyes are larger than the posterior, have evident lenses and are 
situated slightly ventrolaterally so that from the dorsal view they are 
covered by a little tissue. The cirrophore of the median tentacle is rela- 
tively rather broad and fills the anterior cleft of the prostomium. The 
terminal joint is much more slender than the cirrophore. The lateral 
tentacles are similar in form to the median. All tentacles terminate in 
very fine apices without any trace of a sub-terminal enlargement. In the 
type and only specimen the right palp is larger than the left but neither 
is very large, and their surfaces are smooth and without papille. The 
tentacular cirri are absent on the left side. Those of the right side show 
the dorsal one larger than the ventral, about as large as the left palp but 
more slender. Both have fine tips. 
The left first elytron is present. (Figure 6) It is broadly oval in 
outline and translucent with no trace of color. Its inner margin extends 
to the median line of the prostomium and anteriorly it covers the bases 
of the lateral tentacles and tentacular cirri, while posteriorly it covers 
the first and second parapodia. In the entire animal the two first elytra 
must have together covered the entire dorsal surface as far back as the 
first two setigerous somites. The first setigerous somite is wider than the 
prostomium and later ones increase in width so that in the preserved 
material, setigerous somite 5 is three times as wide as the prostomium. 
The second elytra have hardly one-half the width of the first and this 
together with the increase in the width of the body, makes these elytra 
able to cover only a very small portion of the dorsal surface; hardly more 
than the bases of the parapodia. (Figure 7) Elytra 2 to 6 have dark- 
brown margins which makes them easily recognized but later ones are 
